AR15 - 5.56 NATO

AR15 - 5.56 NATO

Shop our selection of 5.56 complete uppers and build kits for your next AR-15. Designed for the best performance possible while not breaking the bank. Use these to upgrade your current gun or have a fresh start for something unique. Whether you're building a self defense pistol or a rifle for hunting these uppers will do the job.

  • Out of stock
    On Sale
    AR-15 Upper Receiver Pink Champagne with 7" M-LOK Free Floating Rail Grid Defense Milspec 9mm Upper Receiver
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    Grid Defense 7.5" 9mm Upper Receiver - Pink Champagne

    Sale: $299.00
    MSRP: $379.00
    Grid Defense 7.5" 9MM Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System...
    Sale: $299.00
    MSRP: $379.00
    Out of stock Quick view
  • Out of stock
    On Sale
    Pink Champagne AR-15 Pistol Upper Receiver with 7" M-LOK Free Floating Rail Grid Defense Milspec 5.56 NATO Upper Receiver
    Quick view

    Grid Defense 7.5" 5.56 Upper Receiver - Pink Champagne

    Sale: $299.00
    MSRP: $379.00
    Grid Defense 7.5" 5.56 Upper Receiver - Pink Champagne Finished in Pink Champagne Cerakote AR15 Skeletonized Upper Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System...
    Sale: $299.00
    MSRP: $379.00
    Out of stock Quick view